100pcs Type1 - Pipe Length: 30mm / 1.18"; Rod Dia.: 6mm / 0.24"; Fit for Screw Dia.(Approx.): 4mm / 0.16"
50pcs Type2 - Pipe Length: 40mm / 1.57"; Rod Dia.: 8mm / 0.31"; Fit for Screw Dia.(Approx.): 6mm / 0.24"
Material - Made of plastic, injection , flexible, good toughness, impact resistance, not easy to break, high expansion coefficient.
Design - Good elasticity and high tension. The protruding edge can prevent the expansion screw from entering the deep part of the hole due to over-deep making.
Application - Can be commonly applied to solid brick, concrete, aerated concrete, high-hole brick, gypsum board, sand brick and other wall materials.